CAJ | 학술논문

用聚丙烯酰胺凝胶电泳法，对109头麦洼牦牛和100头九龙牦牛乳中的乳酸脱氢酶(LDH)同工酶进行检测。结果表明：两品种牦牛乳中LDH在凝胶上仅显示出由4个H亚基组成的LDH1 1条区带。试验共检测到4种LDH1的遗传变异体，按迁移率由大到小依次为A、B、C、D，其中D型仅存在于九龙牦牛中，C型在两品种牦牛中均占明显优势。麦洼牦牛和九龙牦牛LDH1表型频率分布差异极显著。
용취병희선알응효전영법，대109두맥와모우화100두구룡모우유중적유산탈경매(LDH)동공매진행검측。결과표명：량품충모우유중LDH재응효상부현시출유4개H아기조성적LDH1 1조구대。시험공검측도4충LDH1적유전변이체，안천이솔유대도소의차위A、B、C、D，기중D형부존재우구룡모우중，C형재량품충모우중균점명현우세。맥와모우화구룡모우LDH1표형빈솔분포차이겁현저。
Isozymes of lactate dehydrogenase (LDH) in the skim milk of 109 Maiwa yaks and 100 Jiulong yaks were assayed by native PAGE. Only one band (LDH1) was observed on the gel for each sample. Four genetic variants of LDH1 were detected: A, B, C and D according to their mobilities from fast to Slow on the gels. The D variant was observed only in Jiulong yaks. The C variant was predominat in the two breeds. There existed significant difference of the distribution of phenotypic frequency of LDH1 between Maiwa yaks and Jiulong yaks (P＜0. 01).